Chamberlain MYQ-G0201 MYQ Garage Universal Smartphone Control, Never Worry About An Open Garage Door Again, Feel Secure Knowing You Can Check If Your Garage Door Is Open & Control Your Garage Door From Anywhere In The World Via Wi-Fi & Your Smartphone, Installs In Minutes & Works With Your Home's Wi-Fi, Free App With No Monthly Or Ongoing Service Fees, Included Wi-Fi Hub, Door Sensor, Mounting Bracket, Power Cord & Instructions For Free App Download, Designed To Work With Garage Door Openers That Use Reversing Safety Sensors, Compatible With MYQ Apps.